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Questions and Answers
What is typical for all mandibular molars?
What is typical for all mandibular molars?
- Sharp buccal cusps
- Pointed lingual cusps
- Flattened buccal cusps (correct)
- Large occlusal surfaces
Which type of cusps are flattened in mandibular molars?
Which type of cusps are flattened in mandibular molars?
- Buccal cusps (correct)
- Lingual cusps
- Cervical cusps
- Occlusal cusps
What is a characteristic feature of mandibular molars?
What is a characteristic feature of mandibular molars?
- Pointed cervical cusps
- Large lingual cusps
- Narrow occlusal surfaces
- Flattened buccal cusps (correct)
In which type of teeth are buccal cusps typically flattened?
In which type of teeth are buccal cusps typically flattened?
What is a common feature of all lower molars?
What is a common feature of all lower molars?
What can be seen from this aspect?
What can be seen from this aspect?
Approximately how far is the point of bifurcation from the cervical line?
Approximately how far is the point of bifurcation from the cervical line?
What is the point of bifurcation?
What is the point of bifurcation?
What is the cervical line?
What is the cervical line?
What is being referred to by the phrase 'this aspect'?
What is being referred to by the phrase 'this aspect'?
What is the shape of the mesial outline from the cervix to the contact area?
What is the shape of the mesial outline from the cervix to the contact area?
Where is the contact area approximately located?
Where is the contact area approximately located?
What is the shape of the distal outline of the crown from the cervix to the contact area?
What is the shape of the distal outline of the crown from the cervix to the contact area?
How is the level of the mesial contact area related to the level of the cervix?
How is the level of the mesial contact area related to the level of the cervix?
What is the direction of the distal outline of the crown from the cervix to the contact area?
What is the direction of the distal outline of the crown from the cervix to the contact area?
What is the position of the contact area relative to the cervix?
What is the position of the contact area relative to the cervix?
Where is the mesial marginal ridge placed in relation to the cusp tips?
Where is the mesial marginal ridge placed in relation to the cusp tips?
What is the relationship between the mesial marginal ridge and the mesial ridges of the mesiobuccal and mesiolingual cusps?
What is the relationship between the mesial marginal ridge and the mesial ridges of the mesiobuccal and mesiolingual cusps?
Which of the following cusps does the mesial marginal ridge connect with?
Which of the following cusps does the mesial marginal ridge connect with?
What is the position of the mesial marginal ridge relative to the mesiobuccal cusp?
What is the position of the mesial marginal ridge relative to the mesiobuccal cusp?
What is the characteristic of the mesial marginal ridge in relation to the cusp tips?
What is the characteristic of the mesial marginal ridge in relation to the cusp tips?
What is the name of the developmental groove located on the distal surface of a tooth?
What is the name of the developmental groove located on the distal surface of a tooth?
How many pits are typically found on a mandibular molar?
How many pits are typically found on a mandibular molar?
What is the name of the groove located on the lingual surface of a tooth?
What is the name of the groove located on the lingual surface of a tooth?
Where is the central pit typically located on a mandibular molar?
Where is the central pit typically located on a mandibular molar?
What is the name of the developmental groove located on the buccal surface of a tooth?
What is the name of the developmental groove located on the buccal surface of a tooth?
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Study Notes
Morphology of Mandibular Molars
- Mesial outline of the crown is somewhat concave, almost straight, from the cervix to the contact area, which is approximately at the junction of the occlusal and the middle third of the crown.
- The distal outline of the crown is straight from the cervix to the contact area, which is little cervical to the level of the mesial contact area.
- Flattened buccal cusps are typical for all mandibular molars.
- Both roots are visible from the buccal aspect, and the point of bifurcation is located approximately 3mm below the cervical line.
- The mesial marginal ridge is confluent with the mesial ridges of the mesiobuccal and mesiolingual cusps, placed 1mm below the level of the cusp tips.
- Developmental grooves are present:
- Distobuccal developmental groove (3)
- Lingual developmental groove (4)
- There are three pits:
- Central pit (1)
- Middle pit (2)
- Central fossa (3)
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